NEW YORK (REUTERS) - Six US senators have urged President Barack Obama to prioritise cybercrime at this weekend's Group of 20 summit in China, in the wake of the theft of US$81 million (S$110 million) from Bangladesh's central bank, according to a letter obtained by Reuters.

In the letter sent to the White House ahead of the Sept 4-5 summit, Mr Sherrod Brown, a senior Democrat on the Senate Banking Committee, and five other Democratic senators say they want the US President to press leaders from the world's 20 biggest economies to commit in joint communiques to a "coordinated strategy to combat cybercrime at critical financial institutions".

The letter, dated Monday (Aug 29), suggests that concern among US lawmakers is growing over the February incident in which hackers breached Bangladesh Bank's systems and used the Swift banking network to request nearly US$1 billion (S$1.36 billion) from an account held at the Federal Reserve Bank of New York.

Some of the dozens of orders were filled, with much of the lost US$81 million disappearing into Philippines casinos - prompting months of international finger-pointing, an ongoing investigation, and several requests from members of Congress for answers from the Fed and from Swift, the secure messaging service that banks use to transfer money around the world.

"Our financial institutions are connected in order to facilitate global commerce, but cyber criminals - whether independent or state-sponsored - imperil this international system in a way few threats have," the senators, headed by Mr Gary Peters of Michigan, wrote in the letter to Mr Obama.

"We strongly urge you to work with your counterparts and prioritise this discussion at the G-20 leaders level in September," it said of the summit to be held in Hangzhou, China, adding that "executive leadership circles across the globe" needed to pay more attention to the risks.

A senator in the Philippines has said Chinese hackers were likely to have pulled off the Bangladesh Bank heist, citing a network of Chinese people involved in the routing of the stolen funds through Manila.

Beijing has dismissed the suggestion.

Copies of the letter from the US senators were also sent to Federal Reserve chair Janet Yellen and US Treasury Secretary Jack Lew.

OBAMA-XI TALKS

The other senators signing the letter were Mr Mark Warner and Mr Martin Heinrich, both members of the Senate's Select Committee on Intelligence, Ms Kirsten Gillibrand and Ms Debbie Stabenow, the ranking Democrat on the Senate's Committee on Agriculture, Nutrition, and Forestry.

The White House expects G-20 members at the summit "to affirm their commitment to cooperate to fight cybercrime and to enhance confidence and trust in the digital economy", a senior administration official said.

Asked generally about cyber security on Monday, White House spokesman Josh Earnest said at a press conference, "I would anticipate that this issue more generally will be on the agenda" when Obama meets Chinese President Xi Jinping, the G-20 summit host, later this week.

At a November summit, the G-20 pledged not to conduct economically motivated cyber espionage, an agreement intended to reduce the estimated hundreds of billions of dollars worth of commercial trade secrets that are stolen by foreign governments seeking to benefit industry in their own countries.

Since then, the Bangladesh Bank attack and others that have emerged are only some of the threats posed by cyber criminals, the senators wrote.

World regulators should "erect more robust defences and collaborative systems to prevent and mitigate the impact of successful attacks", the letter said, noting that steps already taken by Swift are not enough.

Bangladesh said it supported raising the issue at G-20.

"In most cases, cyber attacks and crimes take place from outside the country," said Mr Ahmed Palak, a junior government minister for information and communications technology. "So while addressing fast growing cyber attacks, there should be a coordinated approach involving global stakeholders."

The Fed and other US regulators said in a letter last week they were focused on cyber risks and controls at banks in the wake of the Bangladesh incident, though they offered few specifics.

Peters, a member of the Senate's Committee on Homeland Security and Governmental Affairs, told Reuters he is considering requesting a committee hearing on the heist.

"I am concerned about the response and what steps have been taken to make sure it doesn't happen again," he said in an interview. "You just need more collaboration and sharing of information... because often times all these entities aren't talking to each other."

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